<template>
  <div class="app-container">
    <el-row :gutter="10">
      <el-col :span="24" :xs="24">
        <!-- 数据筛选表单 -->
        <el-form ref="queryForm" :model="queryParams" :inline="true" label-width="100px">
          <!-- 数据筛选表单组件 -->
          <el-form-item label="菜单名" prop="menuName">
            <el-input v-model="queryParams.menuName" placeholder="请输入菜单名" clearable size="small" @keyup.enter.native="handleQuery" />
          </el-form-item>
          <el-form-item label="状态" prop="status">
            <el-select v-model="queryParams.status" size="small" placeholder="请选择">
              <el-option v-for="item in statusOptions" :key="item.value" :label="item.label" :value="item.value" />
            </el-select>
          </el-form-item>

          <!-- 数据筛选操作按钮 -->
          <el-form-item>
            <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索
            </el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置
            </el-button>
          </el-form-item>
        </el-form>

        <!-- 数据操作按钮 -->
        <el-row :gutter="20">
          <el-col :span="3">
            <el-button type="primary" icon="el-icon-plus" size="small" @click="handleAdd">新增菜单
            </el-button>
          </el-col>
        </el-row>

        <!-- 数据表格 -->
        <el-table v-loading="loading" :data="menuList" style="width: 100%;margin-bottom: 20px;" row-key="menuId" default-expand-all :tree-props="{children: 'children'}">
          <!-- 数据表格列 -->
          <el-table-column label="菜单名称" align="center" prop="menuName" />
          <el-table-column label="菜单ID" align="center" prop="menuId" width="100px" />
          <el-table-column label="路径" align="center" prop="path" />
          <el-table-column label="组件" align="center" prop="component" />
          <el-table-column label="类型" :formatter="menuTypeFormat" align="center" prop="menuType" width="100px" />
          <!-- <el-table-column label="可见" align="center" prop="visible" width="100px" /> -->
          <el-table-column label="状态" align="center" prop="status" width="100px">
            <template slot-scope="scope">
              <el-tag v-if="scope.row.status === '0'" size="small" type="success">正常</el-tag>
              <el-tag v-else-if="scope.row.status === '1'" size="small" type="danger">禁用</el-tag>
            </template>
          </el-table-column>
          <!-- 数据行操作按钮 -->
          <el-table-column label="操作" align="center" class-name="small-padding fixed-width" width="200px">
            <template slot-scope="scope">
              <el-button size="small" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)">修改
              </el-button>
              <el-button size="small" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)">删除
              </el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 数据分页加载 -->
        <!-- <el-pagination
          :current-page="pageNum"
          :page-sizes="[10, 20, 50, 100]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          @pagination="getList"
        /> -->
      </el-col>
    </el-row>
    <!-- 添加修改menu对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <!-- 数据编辑表单组件 -->
        <el-form-item label="请选择">
          <el-tree ref="tree" :data="menuTree" :props="defaultProps" node-key="menuId" @node-click="handleNodeClick" />
        </el-form-item>
        <el-form-item label="父菜单ID" prop="parentId">
          <el-input v-model="form.parentId" placeholder="请选择父级菜单" disabled />
        </el-form-item>
        <el-form-item label="菜单名称" prop="menuName">
          <el-input v-model="form.menuName" placeholder="请输入菜单名" />
        </el-form-item>
        <el-form-item label="菜单类别" prop="menuType">
          <el-select v-model="form.menuType" placeholder="请选择">
            <el-option v-for="item in menuTypeOptions" :key="item.menuType" :label="item.label" :value="item.menuType" />
          </el-select>
        </el-form-item>
        <el-form-item label="路由路径" prop="path">
          <el-input v-model="form.path" placeholder="请输入路由路径" />
        </el-form-item>
        <el-form-item label="组件路径" prop="component">
          <el-input v-model="form.component" placeholder="请输入组件路径" />
        </el-form-item>

      </el-form>
      <!-- 数据提交操作按钮 -->
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
/** 导入axios Api */
import { listMenu, treeMenu, getMenu, addMenu, updateMenu, deleteMenu } from '@/api/system/menu'
export default {
  name: 'Menu',
  data() {
    return {
      // 状态类型
      statusOptions: [
        {
          value: '0',
          label: '正常'
        },
        {
          value: '1',
          label: '禁用'
        }
      ],
      // 遮罩层
      loading: false,
      // Menu表格数据
      menuList: [],
      // 对话框目录+菜单树
      menuTree: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 数据查询参数
      queryParams: {
        menuName: null,
        status: null
      },
      // 数据编辑表单
      form: {},
      // 表单数据校验规则
      rules: {
        menuName: [
          { required: true, message: '菜单名不能为空', trigger: 'blur' }
        ],
        menuType: [
          { required: true, message: '菜单类别不能为空', trigger: 'blur' }
        ]
      },
      menuTypeOptions: [{
        menuType: 'M',
        label: '目录'
      }, 
      {
        menuType: 'C',
        label: '菜单'
      },
      {
        menuType: 'F',
        label: '方法'
      }],
      defaultProps: {
        children: 'children',
        id: 'menuId',
        label: 'menuName'
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询Menu数据列表 */
    getList() {
      this.loading = true
      listMenu(this.queryParams).then((response) => {
        console.log('菜单列表是',response)
        this.menuList = response.data
        this.loading = false
      })
    },
    /** 得到对话框父级菜单树 */
    getTree(){
      this.loading = true
      treeMenu().then((response) => {
        this.menuTree = response.data
        this.loading = false
      })
    },
    /** table菜单类型格式化 */
    menuTypeFormat(row) {
      let type = row.menuType
      switch (type) {
        case 'M':
          type = '目录'
          break
        case 'C':
          type = '菜单'
          break
        case 'F':
          type = '按钮'
          break
      }
      return type
    },
       /** 数据编辑对话框取消按钮 */
    cancel() {
      this.open = false
      this.resetForm()
    },

    /** 数据编辑表单清空 */
    resetForm() {
      this.form = {
        menuId: null,
        menuName: null,
        path: null,
        component: null,
        parentId: 0,
        menuType: null,
        status: '0'
      }
      // 得到父级菜单树
      this.getTree()
    },

    /** 数据筛选搜索按钮 */
    handleQuery() {
      // this.resetQueryParams()
      this.getList()
      this.$message.success('查询成功')
    },

    /** 数据筛选重置按钮 */
    resetQuery() {
      this.queryParams = {
        menuName: null,
        status: null
      }
      this.getList()
    },

    /** 新增按钮操作 */
    handleAdd() {
      this.resetForm()
      this.open = true
      this.title = '添加Menu'
    },

    /** 修改按钮操作 */
    handleUpdate(row) {
      this.resetForm()
      getMenu(row.menuId).then((response) => {
        this.form = response.data
        console.log(this.form)
        this.open = true
        this.title = '修改Menu'
      })
    },

    /** 数据提交按钮 */
    submitForm: function() {
      this.$refs['form'].validate((valid) => {
        if (valid) {
          if (this.form.menuId === null) {
            addMenu(this.form).then((response) => {
              this.$message.success(response.msg)
              this.open = false
              this.title = ''
              this.getList()
            })
          } else {
            updateMenu(this.form).then((response) => {
              this.$message.success(response.msg)
              this.open = false
              this.title = ''
              this.getList()
            })
          }
        }
      })
    },

    /** 删除按钮操作 */
    handleDelete(row) {
      this.$confirm(
        '是否确认删除名称为"' + row.menuName + '"的数据项?', '警告', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
        .then(function() {
          return deleteMenu(row.menuId)
        })
        .then(() => {
          this.getList()
          this.$message.success('删除成功')
        })
        .catch(() => {})
    },
    /** 选中上级菜单 */
    handleNodeClick(data) {
        this.form.parentId = data.menuId
    }
  }
}
</script>
